Question about LG LMV1314 Microwave Oven

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Machine is working but not heating

I have a lg microwave oven and it's all the functions are working but food will not heat.

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  • LG Master
  • 43,501 Answers

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Basic Microwave Oven TroubleshootingTips

heatman101/././.

Posted on Mar 27, 2011

  • Anonymous Oct 14, 2013

    My microwave heating in Toronto will work somtimes other times I'll pull my food out and it will still be forzen. Does anyone know why it's doing this?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: Microwave not heating food

check the protector connected at the capacitor and at the magnetron coil windings, check using an ohm meter.,meter should read to zero

Posted on Dec 21, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: MICROWAVE OVEN DOES NOT HEAT ALL OTHER FUNCTIONS WORK

Since the light comes on and the turntable rotates, I would suspect a bad magnetron, a loose connection at the magnetron, a failed high voltage transformer, or shorted high voltage rectifier diode.

If it's less than one year old, it should be fully covered under warranty.I'd suggest contacting the manufacturer to get it fixed free.

Ifit's within the magnetron portion of the warranty (usually 5-9 years)but out of the original full warranty (usually 1 year), then yourmanufacturer will cover the part cost, but not the cost to visit you orthe labor charge to do the work.

If you or a friend want to work on it, please see these links first:http://www.microwavedisplay.com/safety.txt& http://www.microwavedisplay.com/disassembly.txt

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

Thereshould also be a "mini-manual" hidden inside the unit behind thecontrol panel or hidden on the left side behind the grille, which isvery helpful when troubleshooting & testing.

For Frigidaire models, you can usually find helpful exploded view diagrams and order parts by entering your full model number here.

Or you can find your nearest Frigidaire/Maytag-authorized servicer here.

You can visit Daewoo onlineor call them at 1-800-323-9668 or 1-800-553-4355 to find parts or findyour nearest authorized service center to have them do the work.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Oct 07, 2008

ginko
  • 19396 Answers

SOURCE: LG Microwave does not heat food

est the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

Thediode and capacitors can br tested. The capacitor must bealloweddischarge before testing, or you risk to get electrocuted, evenifpower is off. Capacitors can get discharged by shorting theirtwocontacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.



All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

Posted on Apr 27, 2009

  • 97 Answers

SOURCE: MICROWAVE OVEN NOT HEATING UP FOOD

Will need to pull apart to check....common failure with magnatron fuse....but could be magnatron, capaciter, diode. sugg to have a tech look at....if your not able to check, also call manufacturer, sometimes will cover.

Posted on Jun 10, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: microwave does not heat food

We have service manuals at our site which will help you:
http://www.microwavedisplay.com/r1850_r1851_sm.pdf
http://www.microwavedisplay.com/r1850a_r1851a_r1852a_sm.pdf

Some questions to ask as you or someone you know checks it out.

When you try to microwave are the inside light, internal cooling fan and turntable all working?

If not, then it may be as simple as a door switch.

If so, then it may be a bad magnetron. It can be tested.

Is there any unusual noise or is it louder or quieter than normal?

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.


You can order parts for this from Encompass here or call them toll-free at 866-779-5835.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on May 16, 2010

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1 Answer

Not heating


Hello


Power Supply

Check whether there is a proper power supply. Look to see whether the cord is connected to a grounded 3-prong outlet and the cord is fully plugged in. If the electrical system is built-in and no power cord is visible, replace or reset the household fuse or circuit breaker.

Microwave Functions

Some basic microwave operational steps may affect whether the microwave is heating. Open and close the microwave door, as the unit will not function with the door open, and push "Stop/Clear" to cancel any previous settings, such as the timer, which do not heat the microwave oven.

Setting the Microwave

Once the power to the microwave has been reset, or verified as working, and the microwave is ready to run, select a new cook cycle and press "Start" to see if the microwave begins to run and cook food as expected. Allow the food to cook for the alloted time and then open the microwave door and check to see if the food has cooked or heated. Choose a longer cooking time and restart the microwave if food is heating but is cooking slowly.

Repair

If all efforts to troubleshoot the function and power to the microwave still do not get the appliance heating food as expected, there may be a repair issue that needs to be addressed. Contact professional technician for advice.

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MY LG microwave oven model no MH6344W does not heat the food .The oven is fine after 1 minute microwaving if i remove the food it is as cold as it was. What would be the reason please explain. I tried...


Hi,

If the food is not being heated it means the magnetron is not working. The magnetron is the device which generates microwaves which heat the food. It could be the magnetron itself which is faulty or it could be one or 2 other components causing the magnetron not to work. You will have to take your microwave oven to a service center to determine the exact cause & get a repair quotation.

Let me know if you need further assistance.
Best wishes,
Graeme

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There three parts that will cause this, the first is the magnetron "heats food" the most expensive part, followed by the high voltage capacitor and diode, they work in conjunction to generate the high voltage to cook the food.

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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

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Food will not heat everything else is working


If it does not heat, with all other functions working, the problem lies with the magnetron circuit. The magnetron is the part that makes the microwaves to heat the food. Typically, the magnetron fails and shorts out. Symptoms when this occurs is a loud hum from the oven and does not heat the food. The replacement magnetron costs are close to the price of a new microwave oven, so it rarely pays to have it fixed.

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The Microwave is heating up and appears to function normally. But food is not getting heated or cooked up despite any tempearture and power setting. Even water is not getting heated up and butter not...


If you can't get the food warm or hot, the problem is usually that the magnetron has gone bad. It's an expensive part to replace compared to the price of a new oven.

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My ifb microwave oven is getting hot outside while


Normally when u cook food in microwave the fod is cooked by microwaves, which means the heat is generated with in food. The temperature inside is never too hot and all the heat produced is absorbed with in the food.

On the other hand when the grill is switched on, a separate heatting element gets switched on. You can see this red hot element on the top side of inside of microwave. the heat from this element gets transferred to food through air circulation. But partof heat also gets transferred to the walls of microwave oven. This is the reason the wall feel hot during use of grill.

As i see ther is no problem with the microwave itself. Jut kep delicate thngs a bit away from the microwave.

Oct 17, 2009 | LG Microwave Ovens

1 Answer

LG Microwave does not heat food


est the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

Thediode and capacitors can br tested. The capacitor must bealloweddischarge before testing, or you risk to get electrocuted, evenifpower is off. Capacitors can get discharged by shorting theirtwocontacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.



All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

fggfd

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check magnetron and related circuit, and control unit and highvoltage section..

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